They found a 13x6mm nodule on my right lung by mistake on 28 june by 11 july i had my pet/ct,i organised it by myself...ive had breathing and breathlessness problems now for over one year.but very short of breath these days.when i go to hospital they put on a finger proble and say im ok,but when they do ABG blood gases im very low like an 8.86 for O2.